Spectral analysis of ionized noble gases and implications for astronomy and laser studies

Almandos, J. Reyna; Bredice, F.; Raineri, M.; Gallardo, M.

doi:10.1088/0031-8949/2009/t134/014018

Cited by 17 publications

(18 citation statements)

References 28 publications

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“…We have not obtained the electric dipole transition parameters for some transitions which are in NIST [21] since the oscillator strengths of these transitions are probably zero. In addition we have calculated the radiative lifetime for 1 S 0 state for ground configuration according to (4) and given in Table III. The lifetime value obtained for this state is in good agreement with those of other works [5][6][7][8][9][10] when comparing.…”

Section: Calculation Methodsmentioning

confidence: 99%

“…In addition, various atomic parameters such as energy levels, oscillator strengths, transition probabilities and radiative lifetimes have many important astrophysical applications. For example, transition probabilities are needed for calculating the energy transport through the star in model atmospheres and for direct analysis of stellar chemical compositions [4].…”

Section: Introductionmentioning

confidence: 99%

“…Dzuba and Flambaum [14] calculated energy levels and Landé g factors for neutral xenon and all its positive ions from X II to Xe VIII. Using relativistic Hartree-Fock method, Sobral et al [15] and Almandos et al [4] presented astrophysical and laser studies for several xenon ions. The results of calculations of the transition probabilities of forbidden lines for a number of atoms and ions of astrophysical or laboratory interest were obtained by Osterbrock [16].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Electric Dipole Transition Parameters for 5s-5p and 5p-5d Transitions in Doubly Ionized Xenon

Eser

Özdemir

2017

Acta Phys. Pol. A

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Using the general-purpose relativistic atomic structure package based on the fully relativistic multiconfiguration Dirac-Fock method, we have reported the electric dipole transition (E1) parameters such as wavelengths, weighted oscillator strengths, transition rates (or probabilities) and line strengths for 5s−5p and 5p−5d transitions in Xe 2+ . In calculations, the Breit interaction and quantum electrodynamic effects have been included as perturbations. The calculated values for energy levels including valence and core-valence correlation have been compared with other available experimental and theoretical values in literature. Our transition results can provide useful data for, in particular, experimental works in future.

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Section: Calculation Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Electric Dipole Transition Parameters for 5s-5p and 5p-5d Transitions in Doubly Ionized Xenon

Eser

Özdemir

2017

Acta Phys. Pol. A

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“…The pulsed discharge tube was built at CIOp [16]. This light source consists of a Pyrex tube 100 cm in length and with an inner diameter 0.5 cm in which the gas excitation is produced by discharging a bank of low-inductance capacitors ranging from 20 to 280 nF, charged with voltages up to 20 kV.…”

Section: Experimental Methodsmentioning

confidence: 99%

Spectral Analysis of Moderately Charged Rare-Gas Atoms

Almandos

Raineri

2017

Atoms

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This article presents a review concerning the spectral analysis of several ions of neon, argon, krypton and xenon, with impact on laser studies and astrophysics that were mainly carried out in our collaborative groups between Argentina and Brazil during many years. The spectra were recorded from the vacuum ultraviolet to infrared regions using pulsed discharges. Semi-empirical approaches with relativistic Hartree-Fock and Dirac-Fock calculations were also included in these investigations. The spectral analysis produced new classified lines and energy levels. Lifetimes and oscillator strengths were also calculated.

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“…Generally, investigating Stark broadening of noble gase ionic lines has a great importance for the spectroscopy of both laboratory and astrophysical plasmas (Reyna et al 2009). The Stark parameter behavior along the homologous sequence can provide more information that is especially valuable for astrophysical spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Stark halfwidth trends along the homologous sequence of doubly ionized noble gases

Peláez

Djurović

Cirisan

et al. 2012

A&A

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Aims. The aim of this work is to analyze the behavior of experimentally determined Stark halfwidths for (n− 1)d− np and ns − np transitions along the homologous sequence of doubly ionized noble gases. Methods. We analyzed the Stark halfwidth trends including all available experimental data. Stark halfwidth results for the above mentioned transitions and corresponding multiplets were compared with the halfwidths calculated using the modified semiempirical formula (MSE) and the simplified modified semiempirical formula (SMSE). In case of Ne III the calculation made by semiclassicalperturbation formalism (SCPF) is also presented. Results. Stark halfwidths corresponding to (n − 1)d − np and ns − np transitions have been analyzed along the homologous sequence of doubly ionized noble gases. For all multiplets observed in this work, the analysis shows that the halfwidths of the spectral lines belonging to the same transition show a similar trend along the homologous sequence. Stark halfwidths of ns − np transitions have a clearly increasing trend. On the other hand, for (n − 1)d − np transitions, there are not enough data to make a similar conclusion. This type of trend analysis can be useful for Stark halfwidth predictions and hence for spectroscopic diagnostics of astrophysical plasmas.

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Spectral analysis of ionized noble gases and implications for astronomy and laser studies

Cited by 17 publications

References 28 publications

Electric Dipole Transition Parameters for 5s-5p and 5p-5d Transitions in Doubly Ionized Xenon

Electric Dipole Transition Parameters for 5s-5p and 5p-5d Transitions in Doubly Ionized Xenon

Spectral Analysis of Moderately Charged Rare-Gas Atoms

Stark halfwidth trends along the homologous sequence of doubly ionized noble gases

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